2874c92f30d3fef12c78ed8ac17de5d4e29278f5f60bb6ac66e9d5b622e0ea76

Analysis

max time kernel
1482s
max time network
1495s
platform
windows11-21h2_x64
resource
win11-20240221-en
resource tags

arch:x64arch:x86image:win11-20240221-enlocale:en-usos:windows11-21h2-x64system
submitted
13/03/2024, 15:27

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General

Target

KFC changed me (mp3cutnet)-drums.mp3
Size

2.3MB
MD5

47125c11b93a35a86e4d1b4c1fbade51
SHA1

1992ab3ac508fa64082b5bf4d6d03be9ce453f4c
SHA256

2874c92f30d3fef12c78ed8ac17de5d4e29278f5f60bb6ac66e9d5b622e0ea76
SHA512

4adca0ef917f1a62bdac803719cb79f1b0f8cefe7f315dd772dd80156a61c9f8560ba1875149fe2e8e1e6695f8536349bf73639feca6684eacc934291d20ca1c
SSDEEP

49152:K7+hBSSBYXS/yuVFsrM5+OEnc5wqdTYht+seOud29ZvWZL2w:h/NBYXSOM5Inc5ZKwOudmw

Score

6^/10

Malware Config

Signatures

Enumerates connected drives 3 TTPs 23 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\E:	unregmp2.exe
File opened (read-only)	\??\I:	unregmp2.exe
File opened (read-only)	\??\U:	unregmp2.exe
File opened (read-only)	\??\V:	unregmp2.exe
File opened (read-only)	\??\X:	unregmp2.exe
File opened (read-only)	\??\Y:	unregmp2.exe
File opened (read-only)	\??\A:	unregmp2.exe
File opened (read-only)	\??\H:	unregmp2.exe
File opened (read-only)	\??\J:	unregmp2.exe
File opened (read-only)	\??\L:	unregmp2.exe
File opened (read-only)	\??\N:	unregmp2.exe
File opened (read-only)	\??\W:	unregmp2.exe
File opened (read-only)	\??\Z:	unregmp2.exe
File opened (read-only)	\??\G:	unregmp2.exe
File opened (read-only)	\??\Q:	unregmp2.exe
File opened (read-only)	\??\K:	unregmp2.exe
File opened (read-only)	\??\M:	unregmp2.exe
File opened (read-only)	\??\O:	unregmp2.exe
File opened (read-only)	\??\P:	unregmp2.exe
File opened (read-only)	\??\R:	unregmp2.exe
File opened (read-only)	\??\S:	unregmp2.exe
File opened (read-only)	\??\T:	unregmp2.exe
File opened (read-only)	\??\B:	unregmp2.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeShutdownPrivilege	1152	unregmp2.exe
Token: SeCreatePagefilePrivilege	1152	unregmp2.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2756 wrote to memory of 3992	2756	wmplayer.exe	80
PID 2756 wrote to memory of 3992	2756	wmplayer.exe	80
PID 2756 wrote to memory of 3992	2756	wmplayer.exe	80
PID 2756 wrote to memory of 4908	2756	wmplayer.exe	81
PID 2756 wrote to memory of 4908	2756	wmplayer.exe	81
PID 2756 wrote to memory of 4908	2756	wmplayer.exe	81
PID 4908 wrote to memory of 1152	4908	unregmp2.exe	82
PID 4908 wrote to memory of 1152	4908	unregmp2.exe	82

C:\Program Files (x86)\Windows Media Player\wmplayer.exe
"C:\Program Files (x86)\Windows Media Player\wmplayer.exe" /prefetch:6 /Open "C:\Users\Admin\AppData\Local\Temp\KFC changed me (mp3cutnet)-drums.mp3"
1⤵
- Suspicious use of WriteProcessMemory
PID:2756
- C:\Program Files (x86)\Windows Media Player\setup_wm.exe
  "C:\Program Files (x86)\Windows Media Player\setup_wm.exe" /RunOnce:"C:\Program Files (x86)\Windows Media Player\wmplayer.exe" /prefetch:6 /Open "C:\Users\Admin\AppData\Local\Temp\KFC changed me (mp3cutnet)-drums.mp3"
  2⤵
  PID:3992
- C:\Windows\SysWOW64\unregmp2.exe
  "C:\Windows\System32\unregmp2.exe" /AsyncFirstLogon
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4908
- - C:\Windows\system32\unregmp2.exe
    "C:\Windows\SysNative\unregmp2.exe" /AsyncFirstLogon /REENTRANT
    3⤵
    - Enumerates connected drives
    - Suspicious use of AdjustPrivilegeToken
    PID:1152

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\Media Player\CurrentDatabase_400.wmdb

Filesize
256KB

MD5
aea19723ba05cc4c01e58b17e44358be

SHA1
2bf99d6ac66affcb34f4562341ba13c7ab2e1bdd

SHA256
b66153194c41c7d59fd7fe81a9f025faffb9c1e69993c374355315147dd212e1

SHA512
ce2921178063e7e5b0e699338cee880a287eb5ec04f24e1527ef426a5c7f953c384f8b240ae4f180ac0b64d1171093f9fc88bf42fe7ab311496f4815b99f960d

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C:\Users\Admin\AppData\Local\Microsoft\Windows Media\12.0\WMSDKNS.XML.bak

Filesize
9KB

MD5
7050d5ae8acfbe560fa11073fef8185d

SHA1
5bc38e77ff06785fe0aec5a345c4ccd15752560e

SHA256
cb87767c4a384c24e4a0f88455f59101b1ae7b4fb8de8a5adb4136c5f7ee545b

SHA512
a7a295ac8921bb3dde58d4bcde9372ed59def61d4b7699057274960fa8c1d1a1daff834a93f7a0698e9e5c16db43af05e9fd2d6d7c9232f7d26ffcff5fc5900b

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C:\Users\Admin\AppData\Local\Temp\wmsetup.log

Filesize
1KB

MD5
025c93118b1af2c6b9405edbed054cd2

SHA1
ad021483d028d98dc2469c124993c9b765152356

SHA256
da958c6c67d4ffa728ce94eb2aa961d1c78b60dde88319e7d7f032c526c045c9

SHA512
4db7d5f48cd18956cd76ac1ee7fdb67b36fc49a843326a5413e436e837e561cdb05f6b3de3fb814db6d092554b23a8a2f67e3288c5e86ebfeb4950ee1902490e

Download Submit